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O'Neill Psycho Freak 5mm Backzip 2019 Wetsuit

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The Psycho Freak series of wetsuits are the best in the O'Neill lineup at keeping you warm for seemingly endless days on the water with your favorite sports. And being a part of the Psycho range, you know that this suit will surely be loaded with tech to support you, allow you to move freely and ultimately keep you comfortable enough to allow you to perform at the top of your game.


  • Arms/Shoulders/Shins/Calf: TechnoButter 3
    • The TechnoButter 3 material is an O’Neill exclusive material that is super stretchy, featherlight neoprene that has been merged with the Envy foam rubber core. The ultimate material for warmth and all-day comfort.
  • Chest/Back: TechnoButter Air Firewall Smoothskin
    • The most advanced insulative neoprene type available in the O’Neill range. By utilizing trapped air, they have managed to make this firewall material truly bring the heat to those in need. This technology provides you with quick-drying properties and wind resistance.
  • Lower Body/Upper back: TechnoButter 3 Firewall
    • Three-layered firewall construction where the outer is a TB3 exterior jersey material that is built of maximum stretch hydrophobic yarns with sublime water shedding capabilities. Beneath that is the featherlight Envy Foam rubber core that packs a whole lot of insulating punch, with very little material. And ultimately at the core of this firewall is the TB Firewall that is a heat retaining layer with internal water shedding abilities.
  • Super Seam Weld
    • A Stitchless, 4mm silicone-based urethane seal that is applied internally and externally to a triple-glued seam. This technique is lightweight, non-chafing, waterproof and very flexible.
  • Super Seal Cuffs
    • This technology provides you with the highest level of waterproofing and durability in the O'Neill range. It is designed with a very low profile at the cuff ending which makes the seal tight and snug.
  • Z.E.N. Zip Closure
    • A patented closing system that utilizes a free-floating zipper and an anti-flush barrier-2 with a drain hole which will keep you warm whilst having a minimal effect on your freedom of movement.
  • Anti-Flush Barrier-2
    • Anti-Flush Barrier is in place to keep water from flushing into the suit in areas with for instance zippers beneath it.
Technobutter 3, TechnoButter Firewall, TechnoButter Air Firewall Smoothskin
Super Seam Weld
Extra Features:
Z.E.N. Zip Closure
Wakeboarding, Kitesurfing, Surfing, Windsurfing, SUP (Stand Up Paddling)
Zip Type:
Back Zip
Water Temperature:
41°F - 50°F, 50°F - 57.2°F
Wetsuit Type: